[Elecraft] P3 Freezing while in RX

[wi4t at georgiacarver.com]

My P3 is freezing while in RX mode, no transmit.  I have a K3 -P3-KAT500 and
KPA500 

My firmware for P3 is MCU 01.26

 

I have beads on all cables going to the P3 and I am using a separate power
supply

 

Any thoughts?